NacSpace evaluates your server and network infrastructure as well as your individual workstations to protect your business from a host of security risks.
- We sell, install, and manage antivirus software including ESET, Norton, Zscaler, and Sophos.
- We sell, design, install, and manage firewalls with secure SD-WAN, IPSec tunneling, and more.
- We can create an air gap backup that’s local on-site and another in our data center.
As part of our cybersecurity evaluation, we ensure only those with administrator access can log in as admins. We also update operating systems (OSs) and third-party software, apply patches, and remove malware. In addition, we offer cybersecurity training for your employees so they know how to avoid phishing scams, infected USB sticks, weak passwords, and more.
Air Gap Backups
One way to protect your business from cyberthreats is to create a working, up-to-date backup of your IT infrastructure that’s offline so it’s not vulnerable to cyberattacks. NacSpace can create an air gap backup for you at your business and another in the highly secure NacSpace Data Center. We also can maintain your backups so they provide the latest version of your IT infrastructure if your main systems fail due to a cyberattack. Learn more about NacSpace’s backup as a service (BaaS) options.
Avoiding viruses, spyware, malware, and other online threats is becoming more difficult as cyberattacks grow more malicious. You can count on NacSpace to reduce your risk of cyberattack through antivirus software including ESET and Norton as well as the cloud security apps Zscaler, Sophos, Proofpoint, and VMWare.
NacSpace offers many types of network firewall security products, from routers with pre-installed firewall protections to custom firewall service packages designed to offer your business the best protection against cybersecurity threats.
We install and support hardware-, software-, and cloud-based firewalls from some of the biggest brand names in the information security business. In addition to packet filtering, application- and circuit-level gateway, stateful inspection, and next generation firewalls, NacSpace offers firewalls with cybersecurity features including URL filtering, advanced malware detection, mobile VPNs, and IPSec VPN tunneling.
Customization, Support, and Cybersecurity Monitoring
Choosing the best cybersecurity solutions for your business is a critical step in protecting your IT infrastructure from any and all cyberthreats. NacSpace not only helps you choose the best options but also customizes solutions that fit all your online security and information security needs.
In addition, we offer continued support and monitoring for your IT infrastructure. Our certified technicians work 24/7/365 to ensure your cybersecurity solutions are operational, up to date, and thoroughly protecting your infrastructure from threats.
What Is a Firewall?
A network firewall helps protect the devices on your network from outside threats. You can think of it as ticket checker at an event. When you try to gain entry to the event, you are asked for a ticket. If you don’t have a ticket, you aren’t let in. Or, if you are trying to carry in a prohibited item, you’ll be turned away. This is essentially how firewalls work. If the outside server does not provide the information the firewall needs, or it finds suspicious content in the data being sent, the firewall will not let the potential threat through.
The specifics on exactly how a firewall does this depends on the type of firewall. There are many different types of firewalls out there to choose from, each providing a different level of cybersecurity.
Which Network Firewall Is Best for My Business?
Each type of firewall protects your network in a slightly different way. Some perform just a cursory check of IP addresses while others take a deep look at the addresses, the information being sent, and the request that initiated it. Think of it as the difference between the ID checker at a bar versus an interrogation by the CIA.
So, the type of network firewall that is best for your business depends on the level of protection that you need. For instance, a book shop does not need the same level of protection that a bank needs.
You might even benefit from the use of multiple firewalls in your network security plan.
Packet Filtering Firewall
A packet filtering firewall is probably one of the most common types of firewall out there. In fact, this type of firewall usually comes pre-installed on your router. This firewall protects your network by checking IP addresses and port numbers against the access control list. If you’re not on the list, you don’t get in.
This type of firewall does not actually check the core data, or payload, being sent, so it’s possible that malicious attacks will make it through.
This type of firewall offers a lower level of security but one that works at a fast speed, so it doesn’t slow down your network. This makes it ideal for most small businesses, like that book shop mentioned earlier.
Circuit Level Gateway
A circuit level gateway firewall is rarely a stand alone firewall. These are commonly used in conjunction with packet filtering firewalls, often coming pre-installed on a piece of hardware (like a router or modem) or as an additional optional software install.
This type of firewall works by focusing on the network protocol messages (TCP). It verifies that each attempted connection is legitimate. This firewall operates on the circuit level, so it does not evaluate the actual payload.
The circuit level gateway is not designed as a stand alone firewall, but it can be a great way to add an extra layer of protection to your existing firewall.
Application Level Gateway/Proxy Firewall
An application level gateway, also known as a proxy firewall, is a more advanced type of firewall. It goes past simply checking IP addresses by fully evaluating the data being sent to make sure malicious data is not hidden anywhere in the data packet.
This type of firewall also protects your network by disguising your IP address. The server you request information from does not receive your IP address; it receives your firewall’s IP address instead. The firewall then forwards the data requested to you, so no one outside your network has access to your IP addresses. Think of it like using a food delivery service. The service provider takes your order and relays it to the restaurant, and the food arrives on your doorstep. Restaurant employees never see you; they meet only the delivery driver.
The downside to this level of protection is that it can slow down your network performance, especially if you underestimate the size of firewall you need.
This type of firewall is good for those needing an elevated level of protection, such as a small to medium sized business like a doctor’s office or local college.
Stateful Inspection Firewall
The next tier up on the protection scale is the stateful inspection firewall, which combines elements of the previously mentioned firewalls. However, it goes one step further in its evaluation of incoming data. Instead of just looking at the data, this firewall looks at the whole picture. Does this incoming data match a specific request? Does the format of this data conform to previously received data from this source? By running these checks, this type of firewall can better protect you from more sophisticated cyberthreats.
But, much like the proxy firewall, this firewall can have a negative impact on your network performance if you don’t choose the correct size for your user count and throughput.
This firewall is designed for those seeking a slightly more enhanced level of protection than a proxy firewall provides.
Next Generation Firewall/Multi-Tiered Firewall
The most advanced type of firewall is the next generation firewall or hybrid firewall. This firewall is actually a combination of multiple firewalls arranged in a series. For instance, a potential cyberthreat might make it through the packet filtering firewall only to come up against the application level gateway. Having these firewalls in a series like this offers an extremely high level of protection. An attack might make it through one firewall, but it mostly likely won’t make it through all the firewalls.
This type of firewall usually comes bundled with additional protections including malware detection, antivirus software, intrusion protection, and more. The downside to this advanced protection is that it can affect your network performance, so you’ll need to select a product with the appropriate level of network speed.
A hybrid firewall is the best solution for businesses with a very high level of security risk, like banks and hospitals.
Need more information on firewalls and other cybersecurity solutions? Contact us today!